2 questions in 1: jimmy is running laps during his physical education class. As he is running, he starts to breathe harder as his body tries to get more oxygen. Which of the following best explains why Jimmy’s oxygen requirement increases?

1. His cells use oxygen as their primary source of energy.
2.His cells need oxygen to help break down sugars for energy.
3.His cells need oxygen to increase the levels of sugars in the blood.
4.His cells use oxygen to transport substances across their cell membranes

One of your cells has taken in a sugar molecule from a cookie you ate at lunch. The sugar molecule contains atoms of carbon. Which best explains what will happen to the carbon after your body processes it? *

1.It is recycled by the body to create CO₂ which will be stored for later use.
2.It is destroyed as the body breaks it down to use for energy.
3.It is returned to the environment through CO₂ or the decay of organic matter.
4.It is transformed into sugars which will be broken down and used for energy by the body.

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.

im not intirely sure but i think the anwser is d relative humidity